Results 151 to 160 of about 56,708 (270)

Complete Chloroplast Genomes of Ranunculus arvensis and Ranunculus laetus: Comparative Analysis and Phylogenetic Insights

open access: yesEcology and Evolution, Volume 16, Issue 5, May 2026.
Here, we de novo assembled the chloroplast genomes of Ranunculus arvensis and Ranunculus laetus, providing comprehensive comparative analysis with 21 congeners. The genomes exhibited conserved quadripartite structures with no major rearrangements, though lineage‐specific variations in atpH position were detected in two species.
Hui Li   +10 more
wiley   +1 more source

Comparative Chloroplast Genomics of Cousinia (Asteraceae) With Nine Newly Sequenced Endemic Species From Central Asia

open access: yesEcology and Evolution, Volume 16, Issue 5, May 2026.
In this study, nine complete chloroplast genomes of Cousinia species endemic to the Pamir–Alay mountain system were sequenced and analyzed together with previously published plastomes and nuclear ribosomal ITS data. ABSTRACT Cousinia (Asteraceae: Cardueae) represents one of the most species‐rich genera within the Irano–Turanian floristic region, yet ...
Bobur Karimov   +10 more
wiley   +1 more source

Chloroplast Phylogenomics and Barcode Discovery in Medicinal Stachys Species Reveal Evolutionary Relationships and Adaptive Signatures

open access: yesEcology and Evolution, Volume 16, Issue 5, May 2026.
This study presents the first complete chloroplast genomes of two medicinally important Stachys species, S. persica and S. germanica. Comparative phylogenomic analyses revealed highly conserved genomes with lineage‐specific variations, identified hypervariable regions as candidate DNA barcodes, and detected signatures of positive selection in the petB ...
Fatemeh Sadat Ghotbi, Aboozar Soorni
wiley   +1 more source

Metabolic Reprogramming Analysis of Wheat Response to Low Temperature Stress Under Nitrogen Supply

open access: yesFood and Energy Security, Volume 15, Issue 3, May/June 2026.
Low temperature stress triggers a defense network that maintains growth at the expense of inhibiting photosynthesis and chlorophyll synthesis. Temperature recovery effectively repairs low temperature‐induced damage and enhances stress resistance, while nitrogen supply can further augment these protective processes to strengthen cold tolerance ...
Qiujuan Jiao   +9 more
wiley   +1 more source

Deep Proteomic Profiles of the Antarctic Diatom Fragilariopsis Cylindrus Under Varying Iron and Manganese Conditions

open access: yesPROTEOMICS, Volume 26, Issue 5, Page 112-119, May 2026.
ABSTRACT Fragilariopsis cylindrus is a key diatom in the Southern Ocean, where low iron and manganese availability constrain primary production and biogeochemical activity. The molecular mechanisms used by polar diatoms, including F. cylindrus, to cope with trace metal limitations remain largely unexplored.
Loay J. Jabre   +3 more
wiley   +1 more source

Alphafuser: a parsimonious approach to predicting higher‐order protein complexes

open access: yesActa Crystallographica Section D, Volume 82, Issue 5, Page 421-433, May 2026.
Alphafuser is a structure‐prediction pipeline that integrates experimental interaction data with AlphaFold‐based modeling to systematically assemble multiprotein complexes in a computationally efficient manner. By implementing an ipTM‐based pruning algorithm and validating against known structures and experimental assays, Alphafuser enables the ...
Audrey Guillotin   +5 more
wiley   +1 more source

A Hanks‐type bacterial kinase, PknS, directly phosphorylates the alternative sigma factor EcfK to promote resistance to protist predation

open access: yesThe FEBS Journal, Volume 293, Issue 9, Page 2772-2793, May 2026.
The Xanthomonas citri Hanks‐type kinase PknS autophosphorylates and directly phosphorylates the alternative sigma factor EcfK at five residues. Besides the conserved residue T51 in the σ2 domain, phosphorylation of a residue in the linker between σ2 and σ4 is critical for EcfK activation by promoting its interaction with a positively charged pocket in ...
Lídia dos Passos Lima   +12 more
wiley   +1 more source

Plastid and nuclear phylogenomics of Cyphostemma (Vitaceae) provide new insights into genome size evolution across sub‐Saharan Africa

open access: yesJournal of Integrative Plant Biology, Volume 68, Issue 5, Page 1399-1420, May 2026.
Some African Cyphostemma species evolved much larger genomes as they adapted to dry, rocky habitats. These expansions are linked to succulent traits and specialization on nutrient‐rich limestone outcrops. The findings show how climate‐driven aridification shaped plant evolution and highlight broader genome‐environment patterns across flowering plants ...
Rindra M. Ranaivoson   +18 more
wiley   +1 more source

Higher plant proteins of cyanobacterial origin : are they or are they not preferentially targeted to chloroplasts? [PDF]

open access: yes, 2014
Bayer, Roman G   +5 more
core   +1 more source

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